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scene: add wlr_scene_buffer_set_buffer_with_options()

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This is an extensible version of wlr_scene_buffer_set_buffer().
This commit is contained in:
Simon Ser 2024-08-05 19:28:03 +02:00
parent edb867bc05
commit 48f0902a36
2 changed files with 36 additions and 4 deletions
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18
include/wlr/types/wlr_scene.h
View File

@ -404,6 +404,24 @@ void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer,
void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buffer,
struct wlr_buffer *buffer, const pixman_region32_t *region);
/**
* Options for wlr_scene_buffer_set_buffer_with_options().
*/
struct wlr_scene_buffer_set_buffer_options {
// The damage region is in buffer-local coordinates. If the region is NULL,
// the whole buffer node will be damaged.
const pixman_region32_t *damage;
};
/**
* Sets the buffer's backing buffer.
*
* If the buffer is NULL, the buffer node will not be displayed. If options is
* NULL, empty options are used.
*/
void wlr_scene_buffer_set_buffer_with_options(struct wlr_scene_buffer *scene_buffer,
struct wlr_buffer *buffer, const struct wlr_scene_buffer_set_buffer_options *options);
/**
* Sets the buffer's opaque region. This is an optimization hint used to
* determine if buffers which reside under this one need to be rendered or not.

22
types/scene/wlr_scene.c
View File

@ -686,12 +686,17 @@ struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_tree *parent,
return scene_buffer;
}
void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buffer,
struct wlr_buffer *buffer, const pixman_region32_t *damage) {
void wlr_scene_buffer_set_buffer_with_options(struct wlr_scene_buffer *scene_buffer,
struct wlr_buffer *buffer, const struct wlr_scene_buffer_set_buffer_options *options) {
const struct wlr_scene_buffer_set_buffer_options default_options = {0};
if (options == NULL) {
options = &default_options;
}
// specifying a region for a NULL buffer doesn't make sense. We need to know
// about the buffer to scale the buffer local coordinates down to scene
// coordinates.
assert(buffer || !damage);
assert(buffer || !options->damage);
bool mapped = buffer != NULL;
bool prev_mapped = scene_buffer->buffer != NULL || scene_buffer->texture != NULL;
@ -727,6 +732,7 @@ void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buff
pixman_region32_t fallback_damage;
pixman_region32_init_rect(&fallback_damage, 0, 0, buffer->width, buffer->height);
const pixman_region32_t *damage = options->damage;
if (!damage) {
damage = &fallback_damage;
}
@ -810,9 +816,17 @@ void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buff
pixman_region32_fini(&fallback_damage);
}
void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buffer,
struct wlr_buffer *buffer, const pixman_region32_t *damage) {
const struct wlr_scene_buffer_set_buffer_options options = {
.damage = damage,
};
wlr_scene_buffer_set_buffer_with_options(scene_buffer, buffer, &options);
}
void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer,
struct wlr_buffer *buffer) {
wlr_scene_buffer_set_buffer_with_damage(scene_buffer, buffer, NULL);
wlr_scene_buffer_set_buffer_with_options(scene_buffer, buffer, NULL);
}
void wlr_scene_buffer_set_opaque_region(struct wlr_scene_buffer *scene_buffer,